AU5037096A - Position encoder with fault indicator - Google Patents

Position encoder with fault indicator

Info

Publication number
AU5037096A
AU5037096A AU50370/96A AU5037096A AU5037096A AU 5037096 A AU5037096 A AU 5037096A AU 50370/96 A AU50370/96 A AU 50370/96A AU 5037096 A AU5037096 A AU 5037096A AU 5037096 A AU5037096 A AU 5037096A
Authority
AU
Australia
Prior art keywords
position encoder
fault indicator
fault
indicator
encoder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
AU50370/96A
Other versions
AU714745B2 (en
Inventor
David Mark Sugden
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec SR Drives Ltd
Original Assignee
Nidec SR Drives Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidec SR Drives Ltd filed Critical Nidec SR Drives Ltd
Publication of AU5037096A publication Critical patent/AU5037096A/en
Application granted granted Critical
Publication of AU714745B2 publication Critical patent/AU714745B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G01D5/24461—Failure detection by redundancy or plausibility
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/08—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/08—Reluctance motors
    • H02P25/092—Converters specially adapted for controlling reluctance motors
    • H02P25/0925—Converters specially adapted for controlling reluctance motors wherein the converter comprises only one switch per phase
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/12—Monitoring commutation; Providing indication of commutation failure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
AU50370/96A 1995-03-28 1996-03-27 Position encoder with fault indicator Ceased AU714745B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9506358 1995-03-28
GBGB9506358.2A GB9506358D0 (en) 1995-03-28 1995-03-28 Position encoder with fault indicator

Publications (2)

Publication Number Publication Date
AU5037096A true AU5037096A (en) 1997-10-02
AU714745B2 AU714745B2 (en) 2000-01-13

Family

ID=10772049

Family Applications (1)

Application Number Title Priority Date Filing Date
AU50370/96A Ceased AU714745B2 (en) 1995-03-28 1996-03-27 Position encoder with fault indicator

Country Status (9)

Country Link
US (1) US5723858A (en)
EP (1) EP0735653A1 (en)
JP (1) JPH0989590A (en)
KR (1) KR960036272A (en)
AU (1) AU714745B2 (en)
BR (1) BR9601172A (en)
CA (1) CA2172668A1 (en)
GB (1) GB9506358D0 (en)
ZA (1) ZA962509B (en)

Families Citing this family (27)

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SE516332C2 (en) * 1998-12-03 2001-12-17 Leine & Linde Ab A diagnostic organ
DE19927851B4 (en) * 1999-06-18 2008-11-13 Danfoss Drives A/S Method for monitoring a rotational angle sensor on an electrical machine
JP2003506808A (en) * 1999-08-07 2003-02-18 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Monitoring device for measuring system of electric drive
EP1221591A1 (en) * 2001-01-05 2002-07-10 Günther Moderow Redundant measuring system
JP4050062B2 (en) * 2001-04-02 2008-02-20 サムスン エレクトロニクス カンパニー リミテッド Light source device, backlight assembly having the same, and liquid crystal display device
US6573672B2 (en) * 2001-06-29 2003-06-03 Honeywell International Inc. Fail passive servo controller
US7073271B2 (en) 2002-02-14 2006-07-11 Faro Technologies Inc. Portable coordinate measurement machine
US7881896B2 (en) 2002-02-14 2011-02-01 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
US6965843B2 (en) 2002-02-14 2005-11-15 Faro Technologies, Inc. Portable coordinate measurement machine with integrated line laser scanner
US6952882B2 (en) * 2002-02-14 2005-10-11 Faro Technologies, Inc. Portable coordinate measurement machine
USRE42082E1 (en) 2002-02-14 2011-02-01 Faro Technologies, Inc. Method and apparatus for improving measurement accuracy of a portable coordinate measurement machine
US6957496B2 (en) * 2002-02-14 2005-10-25 Faro Technologies, Inc. Method for improving measurement accuracy of a portable coordinate measurement machine
DE10235163A1 (en) * 2002-08-01 2004-02-19 Robert Bosch Gmbh Sensor monitoring method, especially for motor vehicle use, whereby a specific fault pattern is generated according to a fault, sensor or status signal so that when fault pattern is detected a matched response occurs
US7201244B2 (en) 2003-10-03 2007-04-10 Letourneau, Inc. Vehicle for materials handling and other industrial uses
US7178412B2 (en) * 2004-07-30 2007-02-20 Ballard Power Systems Corporation Encoder failure detection
US7050929B2 (en) * 2004-10-21 2006-05-23 Shop Vac System and method of ensuring legitimacy of a sensor signal received from a rotor position sensor in a motor
US7348545B2 (en) * 2005-06-17 2008-03-25 Avago Technologies Ecbu Ip Pte Ltd System and method for optical encoding on two opposed surfaces of a pattern medium
US7489100B2 (en) * 2005-11-30 2009-02-10 Hofmann Heath F Feedforward controller for synchronous reluctance machines
TWM301437U (en) * 2006-04-25 2006-11-21 Hipro Electronics Taiwan Co Lt Power supply
US7460030B2 (en) * 2006-12-05 2008-12-02 Continental Automotive Systems Us, Inc. System and method for encoder failure detection
GB0625637D0 (en) 2006-12-21 2007-01-31 Switched Reluctance Drives Ltd Operation of an electrical drive system
US20080296521A1 (en) * 2007-05-30 2008-12-04 General Electric Company Method and system for reducing or eliminating uncontrolled motion in a motion control system
US7616023B2 (en) * 2007-06-22 2009-11-10 Delphi Technologies, Inc. Method of detecting a malfunction of an encoder for a vehicle drive system
DK176958B1 (en) * 2007-12-19 2010-07-26 Vestas Wind Sys As Generator system with intelligent processing of position signal
US8269445B2 (en) * 2009-10-20 2012-09-18 GM Global Technology Operations LLC Limp home operational mode for an electric vehicle
JP2012253908A (en) * 2011-06-03 2012-12-20 Ihi Aerospace Co Ltd Electric-actuator drive device and actuator using the same
US10562715B2 (en) 2017-09-12 2020-02-18 Magnemotion, Inc. Method and apparatus to diagnose a linear synchronous motor system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58205211A (en) * 1982-05-26 1983-11-30 Fanuc Ltd Pulse encoder with fault self-diagnosing function
JPH0632582B2 (en) * 1982-07-15 1994-04-27 株式会社三協精機製作所 DC brushless electric motor
DE3323281A1 (en) * 1983-06-28 1985-01-10 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut METHOD AND ARRANGEMENTS FOR MONITORING FAULTS IN A MEASURING DEVICE
SE8802394D0 (en) * 1988-06-27 1988-06-27 Electrolux Mecatronik Ab RELUCTANCE
GB2228842B (en) * 1989-01-09 1993-01-06 Schlumberger Ind Ltd Relative position transducer
US4896089A (en) * 1989-01-31 1990-01-23 General Electric Company Fault management system for a switched reluctance motor
US4896088A (en) * 1989-03-31 1990-01-23 General Electric Company Fault-tolerant switched reluctance machine
JP2794798B2 (en) * 1989-06-30 1998-09-10 株式会社安川電機 Encoder
DE4222370C2 (en) * 1992-07-08 1996-05-30 Danfoss As Fault-tolerant reluctance motor

Also Published As

Publication number Publication date
US5723858A (en) 1998-03-03
ZA962509B (en) 1997-09-29
CA2172668A1 (en) 1996-09-29
KR960036272A (en) 1996-10-28
JPH0989590A (en) 1997-04-04
BR9601172A (en) 1998-01-06
AU714745B2 (en) 2000-01-13
GB9506358D0 (en) 1995-05-17
EP0735653A1 (en) 1996-10-02

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
MK14 Patent ceased section 143(a) (annual fees not paid) or expired